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Finding the Fourth Proportional to 370,431.60, 555,647.40 and 104,200.80

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Solution

The fourth proportional to 370,431.60, 555,647.40 and 104,200.80 is: 156,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,431.60 : 555,647.40 = 104,200.80 : x
  2. Step 2: Convert to fraction form
    370,431.60/555,647.40 = 104,200.80/x
  3. Step 3: Cross multiply
    370,431.60x = 555,647.40 × 104,200.80
  4. Step 4: Simplify right side
    370,431.60x = 57,898,903,597.92
  5. Step 5: Solve for x
    x = 57,898,903,597.92/370,431.60
  6. Step 6: Final answer
    x = 156,301.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.